Home / 2,189,777.34-3,021,676.80-1,222,886.88

Finding the Fourth Proportional to 2,189,777.34, 3,021,676.80 and 1,222,886.88

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Solution

The fourth proportional to 2,189,777.34, 3,021,676.80 and 1,222,886.88 is: 1,687,463.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,189,777.34 : 3,021,676.80 = 1,222,886.88 : x
  2. Step 2: Convert to fraction form
    2,189,777.34/3,021,676.80 = 1,222,886.88/x
  3. Step 3: Cross multiply
    2,189,777.34x = 3,021,676.80 × 1,222,886.88
  4. Step 4: Simplify right side
    2,189,777.34x = 3,695,168,914,320.38
  5. Step 5: Solve for x
    x = 3,695,168,914,320.38/2,189,777.34
  6. Step 6: Final answer
    x = 1,687,463.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.